Results 71 to 80 of about 293,330 (287)
Frontiers in Physiology, 2022 Heart rate is accelerated to match physiological demands through the action of noradrenaline on the cardiac pacemaker. Noradrenaline is released from sympathetic terminals and activates β1-and β2-adrenergic receptors (ΑRs) located at the plasma membrane ...
Sabrina Choi +3 more
doaj +1 more source
Molecular Oncology, EarlyView.This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou +13 more
wiley +1 more source
Molecular Oncology, EarlyView.Triacsin C inhibition of the acyl‐CoA synthetase long chain (ACSL) family decreases multiple myeloma cell survival, proliferation, mitochondrial respiration, and membrane potential. Made with Biorender.com. Multiple myeloma (MM) is an incurable cancer of plasma cells with a 5‐year survival rate of 59%.
Connor S. Murphy +12 more
wiley +1 more source
Theory and experiment reveal unexpected calcium profiles in one-dimensional systems [PDF]
arXiv, 2013 Calcium is an ubiquitous second messenger that triggers a plethora of key physiological responses. The events are initiated in micro- or nano-sized compartments and determined by the complex interactions with calcium-binding proteins and mechanisms of calcium clearance. Local calcium increases in the vicinity of single channels represent an essentially
arxiv
Mitochondrial calcium channels
FEBS Letters, 2010 Mitochondrial Ca2+handling plays an important role in energy production and various cellular signaling processes. Mitochondrial Ca2+uptake is regulated by the mitochondrial Ca2+uniporter (MCU), at least one non‐MCU Ca2+channel and possibly a mitochondrial ryanodine receptor. Two distinct mechanisms mediate Ca2+outward transport, the Na+‐dependent (mNCX)
openaire +3 more sources
Molecular Oncology, EarlyView.The complex mode of action of the topoisomerase II inhibitor etoposide in triggering apoptosis involves several mechanisms: overexpression of the mitochondrial protein VDAC1, leading to its oligomerization and formation of a large channel that mediates the release of pro‐apoptotic protein; and overexpression of the apoptosis regulators p53, Bax, and ...
Aditya Karunanithi Nivedita +1 more
wiley +1 more source
Türk Biyokimya Dergisi, 2023 Voltage-gated calcium channels are essential elements in development of many cellular processes like electrical signaling, contraction secretion and gene expression.
Saglam Berk +5 more
doaj +1 more source
Electrodiffusion with calcium-activated potassium channels in dendritic spine [PDF]
arXiv, 2019 We investigate calcium signaling feedback through calcium-activated potassium channels of a dendritic spine by applying the immersed boundary method with electrodiffusion. We simulate the stochastic gating of such ion channels and the resulting spatial distribution of concentration, current, and membrane voltage within the dendritic spine.
arxiv
Molecular Oncology, EarlyView.Cancer stem cells are associated with aggressive disease, but a deep characterization of such markers is lacking in endometrial cancer. This study uses imaging mass cytometry to explore putative cancer stem cell markers in endometrial tumors and corresponding organoid models.
Hilde E. Lien +7 more
wiley +1 more source
Cavβ1 regulates T cell expansion and apoptosis independently of voltage-gated Ca2+ channel function
Nature Communications, 2022 The function of voltage-gated calcium channels in T cells is not well understood and controversial. Here the authors report that a regulatory beta subunit of voltage-gated calcium channels regulates T cell function despite no evidence that these channels
Serap Erdogmus +14 more
doaj +1 more source